C#数据路接口中获取SQL数据的用法

1. 获取一条记录

string sql = string.Format(“”);

DataRow row;

if (GetFirstDataRow(sql, out row))

     {

      caseInfoBrief.TEST_TASK_STATUS = row["CASE_STATUS_FINISH"].ToString()

              return true;

}

1. 获取多条记录

string sql = string.Format("select * from T_TEST_TASK where TEST_USER_ID={0} and TASK_STATUS in ({1}, {2}) ", uID,(int)E_TEST_TASK_STATUS.已分派, (int)E_TEST_TASK_STATUS.待评价);

DataTable dataTable;

if (GetDataTable(sql, out dataTable))

{

foreach (DataRow row in dataTable.Rows)

{

T_TEST_TASK testTask = new T_TEST_TASK();

                testTask.TASK_ID = row["TASK_ID"].ToString()                       

               int.TryParse(row["TASK_TYPE"].ToString(), out testTask.TASK_TYPE);

               DateTime.TryParse(row["CREATE_TIME"].ToString(), out caseInfoBrief.CREATE_TIME);

        list.Add(testTask);

        }

}

3.数据分页显示

var sql = string.Format("select * from (select rownum rn,T_CASE_INFO.* from T_CASE_INFO)  where rn>={0}*{1} and rn<={0}*{1}+{1}", page,record);

4.批量执行SQL语句

 var sql = string.Format("delete from T_CASE_INFO where CASE_ID='{0}'",caseID);

 var sql2 = string.Format("delete from T_CASE_LOG where CASE_ID='{0}'", caseID);

 List<string> sqlList = new List<string>();

 sqlList.Add(sql);

 sqlList.Add(sql2);

return ExecuteListNonQuery(sqlList);

5.统计个数

end ) as survey_finished 

from v_case_breif_info  group by  CASE_ID)

6.左连接查询

SELECT TotalScore,graped,giveup,Finished  from

) t1  left join

END) as Finished

  group by User_ID) t on t1.id = T.USER_ID